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Host Selection by Pine Cone Beetles in North America (Coleoptera: Scolytidae)

Frank Forcella and Stephen J. Harvey
The Coleopterists Bulletin
Vol. 37, No. 4 (Dec., 1983), pp. 343-347
Stable URL: http://www.jstor.org/stable/4008255
Page Count: 5
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Host Selection by Pine Cone Beetles in North America (Coleoptera: Scolytidae)
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Abstract

Pine cone beetles of the genus Conophthorus (Coleoptera; Scolytidae) require approximately one year for maturation from eggs to adults. Most of this time is spent within brood chambers constructed in the ovulate cones of pine trees. If the brood is to be successful, then the chambers must remain intact for at least one year. Species of pine trees that are attacked by cone beetles have cones which are decay-resistant for at least one year, whereas pine species whose cones are not attacked by cone beetles have cones which decompose rapidly. Other animals that cache plant material for over-winter food supplies and/or live within their caches seem to select decay-resistant plants for such purposes.

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